Preserving eggs.



` constructed to receive the cases of tds TEBNAND LESCARD, F PARIS, FRANCE.

PBESEBVING EGGS.

Specification ot Letters Patent.

Patented Dec. 12, 1.911.- y

To Aall whom 1'# may concern:- Beit known that I, TERNAND Lascann, a' citizen of the Replublic of France, residing 'in Paris, France, ave invented certain new 5 anduseful Improvements in Preserving Eggs, -of which the following is a specification.

. e ordinary rocess for preserving eggs byTlefrigerationponly keeps them good for 4 months; the improvement .according to my invention insures that the eggs at the end of 10 months are as fresh in taste, as full and of as good appearance as4 they were when they were put under the preserving condi- 16, tions. Moreover the invention does not entail any waste. A The accompanying draw show diaatically in elevation in igure 1 and 1n 'plan in Fig. 2'apparatus suitable for car- I0 rying out my invention.

This ap aratus comprises a U-tube u containing ydrous calcium chlorid for drying theair; a furnace F or any equivalent apgiearatus for heating to redness a porcelain I5 tu t filled with co per; a pipe t in series with the said porce am tube provided with cocks r, 1", r through which carbon dioxid can be admitted into the tube from bottles A of the liquefied gas; a; vessel S containing t a worm surrounded with`hot or cold water so as 'to eect an exchange of temperature for heating the vaporized carbon dioxid and for coolin the mtrogen sterilized by the heat; a cy drical autoclave B lying horizontlll .on foundations s and containing wheels' carriages running on rails l an @ses 0f a pipeft connecting the autoclave with a vacuum pump P; a platform p on to which '4 ltllecarrlages containing the eggs are run when they are removed from the autoclave;

a ometer M; a vacuum indicator I; two colclnma and a cleaning cock H fitted to the autoclave. v l The are placed in'sheet iron boxes adapted to be hermetically closed, lined internally and coated externally with wooden slats; within each box is a trai containing 'anhydrous calcium chlorid to eep the atm here dry; the box is then closed hermetlcally `with the exce tion of a small circular-ovening of 5mm. ameter for the passage o gas; these boxes are then place in' the which is introduced into. the u autoclave; the latter is hermetically closed 'proceed for a time depen Application led Harsh 29, 1909. Serial No. 486,570.

land the treatment with carbon dioxid under pressure begins." For this purplose the autoclave is iirst umped out, w ereupon the carbon dioxid 1s admitted. The latter passes through the vessel S where it is heated before it gets access to the eggs; without this precaution the ga's might break the shells owing to its lowtemperature roduced by the volatilization of the liquidi The preliminary operation of pumping out the autoclave is necessary for deprlving the eggs of al1 gases which they contain in solution,

especially o gen, and for making it possible to apply to t em an atmosphere composed of an accurately measured mlxture of 10% ni- 70 t trogen and 90% carbon dioxid as hereinafter explained. When the pressure has attained a certain Vpoint which varies according to the freshness of the 'eggs the admission of gas is stopped and the ation is allowed to ing on' the condition of freshness of the eggs. en this` treatment is finished the pressure in the au-i toclave is allowed to decrease until it has attained that of the atmosphere and the following operation iserformed: By means of the vacuum pump t e as is umped out of the autoclave so as to iminis the pressure to about cms. of water, the cocksrn and r* and a are'then opened whereupon outside air is drawn in throu h a orcelain tube t after traversing thetu u w ere it is dried; in the porcelain tube containing thered hot cop er turnings the air yields its oxygen so t at nothin passes into the autoclave except the sterilized nitrogen, cooled by assing through the vessel S. The pressure avingf again risen in the autoclave to that of the atmov here the cocks r, r', and r and a are-closed? The eggs are'thus surrounded by an atmosphere consisting of the inert as, nitrogen, containing carbon dioxid. e carria is now removed from the autoclave and t e small openings in the boxes are sealed up. The boxes are then conveyed to a refrigeratin chamber in which,by any usual or suita le means, a temperature of l very near 0 C. is maintained, avera g +1 C. The effect of such an atmosp ere is to prevent the development of the bacteria whic might have escaped from the sterilizing action of carbon dioxid, and also to hinder the fermentation of a true chemical character.

Having thus described the nature of Amy 11.0

5 hausting the air therefrom,

Correct Letters Patent No. 1,011,352.

invention and the best means I know of car lrying the saine into practical effect, I claim:

A process for preserving eggs which consists in placing them in a receptacle, ex-

submitting them for a time to theV action of pure carbonio acid in order to destroy existing bacteria and thereafter adding nitrogen to form a mixture with the carbonio acid, sealing the receptacle and thereafter maintaining the receptacle containing the eggs and gaseous It is hereby certied that in Letters ofthe Acase in the Patent OBce.

lOn In yC. and averaging about +1 erroneously `Written and printed Ternand Lescard, have been written and printed Fernand Lesca'rd;

lshould be read with this correction therein that the ksame may mixture at a temperature approximately 0 C. during the entire are to be preserved. v In witness whereof, I have hereunto signed my name in the presence-of two subscribing witnesses.

period that the eggs TERNAND LESCARD.

Patent No.. 1,011,352;granted December 12, t

1911, for an improvement in Preserving Eggs, vthevname of the patentee'was Whereas said name should and that the said Letters Patent conform to the record Signed and sealed this 16th day of January, A. D.,`19112,

o. C. BiLLINGs, Acting Commissioner of Patents.

5 hausting the air therefrom,

Correct Letters Patent No. 1,011,352.

invention and the best means I know of car lrying the saine into practical effect, I claim:

A process for preserving eggs which consists in placing them in a receptacle, ex-

submitting them for a time to theV action of pure carbonio acid in order to destroy existing bacteria and thereafter adding nitrogen to form a mixture with the carbonio acid, sealing the receptacle and thereafter maintaining the receptacle containing the eggs and gaseous It is hereby certied that in Letters ofthe Acase in the Patent OBce.

lOn In yC. and averaging about +1 erroneously `Written and printed Ternand Lescard, have been written and printed Fernand Lesca'rd;

lshould be read with this correction therein that the ksame may mixture at a temperature approximately 0 C. during the entire are to be preserved. v In witness whereof, I have hereunto signed my name in the presence-of two subscribing witnesses.

period that the eggs TERNAND LESCARD.

Patent No.. 1,011,352;granted December 12, t

1911, for an improvement in Preserving Eggs, vthevname of the patentee'was Whereas said name should and that the said Letters Patent conform to the record Signed and sealed this 16th day of January, A. D.,`19112,

o. C. BiLLINGs, Acting Commissioner of Patents.

;granted December 12,

,' and that 'the said Letters Patent C. C. BILLINGS,

Acting Commissioner 0f Patents.

Itis hereby certified that in Letters Patent No.. 1,011,352 1911, for an improvement in Preserving Eggs, the name of the patentee was erroneously Vwritten and printed Ternand Lescard, whereas said neme should i have been Written and printed Fernand Lesca'rd i should he read with this correction therein that the same may conform to the record of the case in the Patent Ofhce.

Signed and sealed this 16th dey of January, A. D.` 1912.

[SEAL] 

